What departments does ATC have?

ATC has employees across 14 departments including Human Resources, Finance, Legal, Program & Project Management, Operations.

What is the largest department at ATC?

The largest department at ATC is Program & Project Management with 8 employees.

Where are ATC employees located globally?

ATC has employees across 3 continents and 7 countries including India, Bangladesh, Turkey, Pakistan, Poland.

How has ATC's team size changed over time?

ATC's team has decreased from approximately 890 to 580 employees based on available data.

ATC Employee Directory

Q: Who are ATC's key employees and leadership?

ATC's key employees include: Chair, President And Ceo: T. M., Chief Executive Officer: M. T., Chief Executive Officer: T. A. M., Chief Executive Officer, Managing Partner: T. F., Chief Financial Officer: A. G..

UtilitiesWisconsin, United States501-1000 Employees

ATC is connecting you with a sustainable energy future. We are a transmission-only electric utility that helps keep the lights on, businesses running and communities strong in portions of Wisconsin, Michigan, Minnesota and Illinois. As an owner and operator of almost 10,000 miles of transmission lines and more than 560 substations, we help meet the power needs of more than 5 million customers in Midwestern communities. 

Our mission is to perfect our business and lead the transition to a sustainable energy future. 

We live a culture of one team – connected by purpose, curiosity and positive energy. 

We are guided by our values: We Care, We Challenge, We Commit, We Communicate, We Compete and We Celebrate.

ATC Global Highlights

North America
769

United States Of America
768
Mexico
1

Asia
9

India
4
Bangladesh
2
Turkey
2
Pakistan
1

Europe
1

Poland
1

ATC's Leadership

M. T.
Chief Executive Officer
Mobile Phone
Email
T. A. M.
Chief Executive Officer
Mobile Phone
Email
T. F.
Chief Executive Officer, Managing Partner
Mobile Phone
Email
A. G.
Chief Financial Officer
Mobile Phone
Email
T. D.
Vice President - System Planning
Mobile Phone
Email
B. R.
Vice President - Finance/Accounting
Mobile Phone
Email
S. H.
Vice President It
Mobile Phone
Email
A. D.
Vice President System Planning
Mobile Phone
Email

ATC Employee Metrics

100%

50%

0%

2026

2025

Engineering
Program & Project Management
Consultant
Analytics
Operations
Other
Information Technology
Administrative
Legal
Supply Chain
Accounting

Contact profiles from ATC

Name

Title

Contact Info

Location

Last Update

B. M.
Executive Vice President And General Counsel
Mobile Phone
Email
United StatesWisconsin
May 29, 2026
A. H.
Vice President, Supply Chain & Project Performance
Mobile Phone
Email
United States
May 22, 2026
M. S.
Vice President, System Operations
Mobile Phone
Email
United StatesWisconsin
Apr 14, 2026
T. D.
Vice President - System Planning
Mobile Phone
Email
United StatesWisconsin
Oct 13, 2025
B. R.
Vice President - Finance/Accounting
Mobile Phone
Email
United StatesWisconsin
Apr 14, 2026
S. H.
Vice President It
Mobile Phone
Email
United StatesWisconsin
Apr 17, 2026
A. D.
Vice President System Planning
Mobile Phone
Email
United StatesWisconsin
Apr 15, 2026
D. M.
Vice President - Supply Chain & Project Controls
Mobile Phone
Email
United StatesWisconsin
May 30, 2026
T. S.
Director, Asset Management
Mobile Phone
Email
United StatesWisconsin
Apr 14, 2026
S. W.
Director Of Business Solutions & Analytics
Mobile Phone
Email
United States
Jun 01, 2026

Frequently Asked Questions

What is ATC known for?

ATC operates in the Utilities industry. The company's main headquarters is located in po Box 47 Waukesha, Wisconsin 53187 United States; you can contact the main corporate office by phone at

+1-262-506-****

. Explore ATC's company overview page for more information.

What is ATC's most common email format?

ATC employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more ATC email formats with LeadIQ.

How many employees does ATC have currently?

ATC has approximately 845 employees as of June 2026. These team members are located across 3 continents, including North AmericaAsiaEurope.

Who are ATC's key employees and leadership?

As of June 2026, ATC's key employees include:

Chief Executive Officer: M. T.
Chief Executive Officer: T. A. M.
Chief Executive Officer, Managing Partner: T. F.
Chief Financial Officer: A. G.
Vice President - System Planning: T. D.

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ATC Employee Directory

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